查看“︁Kubernetes installation”︁的源代码

= Ubuntu 22.04 =
==System preparation==
===Updrage===
<syntaxhighlight lang="bash">
sudo apt update
sudo apt upgrade
do-release-update
</syntaxhighlight>

=== Mount data disk ===
<syntaxhighlight lang="bash">
mkfs.xfs /dev/vdb
lsof /var
mv /var/ /var0
mkdir /mnt/newvar/
mount /dev/vdb /mnt/newvar/
rsync -aqxP /var0/* /mnt/newvar/
umount /mnt/newvar
mkdir /var
mount /dev/vdb /var

vim /etc/fstab
# /dev/vdb /var xfs  defaults 0 0
</syntaxhighlight>

=== System configuration ===
<ref>https://kubernetes.io/docs/setup/production-environment/container-runtimes/#forwarding-ipv4-and-letting-iptables-see-bridged-traffic</ref>
<syntaxhighlight lang="bash">
hostnamectl set-hostname master.xx.com

cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
overlay
br_netfilter
EOF

sudo modprobe overlay
sudo modprobe br_netfilter

# sysctl params required by setup, params persist across reboots
cat <<EOF | sudo tee /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-iptables  = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.ipv4.ip_forward                 = 1
EOF

# Apply sysctl params without reboot
sudo sysctl --system
</syntaxhighlight>

Verify:
<syntaxhighlight lang="bash">
root@vm10-19-30-61:~# lsmod | grep br_netfilter
br_netfilter           32768  0
bridge                307200  1 br_netfilter
root@vm10-19-30-61:~# lsmod | grep overlay
overlay               151552  0
root@vm10-19-30-61:~# sysctl net.bridge.bridge-nf-call-iptables net.bridge.bridge-nf-call-ip6tables net.ipv4.ip_forward
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
net.ipv4.ip_forward = 1
</syntaxhighlight>

=== Disable swap ===
<syntaxhighlight lang="bash">
# check if swap is disabled
swapon -s
</syntaxhighlight>

== Install Kubernetes ==
=== Containerd runtime===
<ref>https://docs.docker.com/engine/install/ubuntu/</ref>
<ref>https://mirrors.tuna.tsinghua.edu.cn/help/docker-ce/</ref>

<syntaxhighlight lang="bash">
# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc



# Add the repository to Apt sources:
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

# Use mirror instead:
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/ubuntu \
  "$(. /etc/os-release && echo "$VERSION_CODENAME")" stable" | \
  tee /etc/apt/sources.list.d/docker.list > /dev/null

sudo apt-get update

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

sudo usermod -aG docker $USER
sudo systemctl enable docker.service
sudo systemctl enable containerd.service
</syntaxhighlight>

Generate containerd config using systemd:
<syntaxhighlight lang="bash">
sudo containerd config default | sudo tee /etc/containerd/config.toml
</syntaxhighlight>

And modify it:
<syntaxhighlight lang="bash">
[plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc]
  ...
  [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
    SystemdCgroup = true

sandbox_image = "registry.aliyuncs.com/google_containers/pause:3.6"
</syntaxhighlight>

Restart the service:
<syntaxhighlight lang="bash">
sudo systemctl restart containerd
</syntaxhighlight>

=== Kubeadm===

[[Category:Linux/Unix]]
[[Category:Kubernetes]]